HTMLDialogElement.show()

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The show() method of the HTMLDialogElement interface displays the dialog modelessly, i.e. still allowing interaction with content outside of the dialog.

Syntax

dialogInstance.show();

Parameters

None.

Return value

Void.

Examples

The following example shows a simple button that, when clicked, opens a <dialog> containing a form via the show() method. From there you can click the Cancel button to close the dialog (via the HTMLDialogElement.close() method), or submit the form via the submit button.

  <!-- Simple pop-up dialog box, containing a form -->
  <dialog id="favDialog">
    <form method="dialog">
      <section>
        <p><label for="favAnimal">Favorite animal:</label>
        <select id="favAnimal" name="favAnimal">
          <option></option>
          <option>Brine shrimp</option>
          <option>Red panda</option>
          <option>Spider monkey</option>
        </select></p>
      </section>
      <menu>
        <button id="cancel" type="reset">Cancel</button>
        <button type="submit">Confirm</button>
      </menu>
    </form>
  </dialog>

  <menu>
    <button id="updateDetails">Update details</button>
  </menu>

  <script>
    (function() {
      var updateButton = document.getElementById('updateDetails');
      var cancelButton = document.getElementById('cancel');
      var dialog = document.getElementById('favDialog');
      dialog.returnValue = 'favAnimal';

      function openCheck(dialog) {
        if(dialog.open) {
          console.log('Dialog open');
        } else {
          console.log('Dialog closed');
        }
      }

      // Update button opens a modal dialog
      updateButton.addEventListener('click', function() {
        dialog.showModal();
        openCheck(dialog);
      });

      // Form cancel button closes the dialog box
      cancelButton.addEventListener('click', function() {
        dialog.close('animalNotChosen');
        openCheck(dialog);
      });

    })();
  </script>

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'show()' in that specification.
Living Standard  
HTML 5.1
The definition of 'show()' in that specification.
Recommendation  

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Experimental
Chrome Full support 37Edge Full support YesFirefox Full support 53
Notes Disabled
Full support 53
Notes Disabled
Notes See bug 840640.
Disabled From version 53: this feature is behind the dom.dialog_element.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support YesSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support 53
Notes Disabled
Full support 53
Notes Disabled
Notes See bug 840640.
Disabled From version 53: this feature is behind the dom.dialog_element.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

  • The HTML element implementing this interface: <dialog>.

Document Tags and Contributors

Contributors to this page: sideshowbarker, fscholz, chrisdavidmills
Last updated by: sideshowbarker,